Head to Taos Ski Valley for the 10th annual Bull of the Woods Trail Races, which will feature two half marathon options, a full marathon, and a brand-new 10K course in 2026. The full marathon and TSV half marathon route tackle Kachina Peak (12,481 ft) before continuing to Fraser Peak (12,168 ft), covering the entire valley for serious trail credentials, while the Northside half marathon sticks to tight single-track trails with stunning views. The new 10K starts with about 1.2K on mountain roads to Lift 8, then switches to single-track trails for the rest of the race with nearly 2,000 feet of elevation gain.